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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541799178

Certificate GIA 6541799178

Diamond specifications and retailer prices

From €8,935 EUR
As of November 6, 2026
Save €4,906 EUR (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €13,841 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541799178. Listed at 11 retailers as of November 5, 2026, with prices from €8,935 to €13,841, a €4,906 spread on the same certified stone. NZ Jewellers lists it at €13,841. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6541799178
Dimensions8.68 × 8.64 × 5.42 mm
L/W Ratio1.00
Star length55%
Top View
8.68 mm8.64 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541799178
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €13,841 EUR|Low: €8,935 EUR|High: €13,841 EUR|Avg: €10,676 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4€8,935 EUR
Retailer 9€9,167 EUR
Retailer 8€9,168 EUR
Retailer 2€9,503 EUR
Retailer 11€9,931 EUR
Retailer 3€10,084 EUR
Retailer 7€10,429 EUR
Retailer 5€11,403 EUR
Retailer 10€11,459 EUR
Retailer 6€12,935 EUR
NZ Jewellers€13,841 EUR

29 data points across 11 retailers

11 retailers€8,935 EUR to €13,841 EUR

A
Cheapest Retailer
-
€8,935 EUR
Retailer 2
-
€9,167 EUR
View
Price last confirmed 8 days ago
A
Retailer 3
-
€9,168 EUR
View
A
Retailer 4
-
€9,503 EUR
View
A
Retailer 5
-
€9,931 EUR
View
A
Retailer 6
-
€10,084 EUR
View
A
Retailer 7
-
€10,429 EUR
View
B+
Retailer 8
-
€11,403 EUR
View
B+
Retailer 9
-
€11,459 EUR
View
B+
Retailer 10
-
€12,935 EUR
View
Most Expensive
B+
NZ Jewellers
55130f87-974a-47b4-9126-a31325fafd30 · Nov 5
€13,841 EUR
$15,535 USD
View
10 more retailers have this diamond
Prices start from €8,935 EURSave up to €4,906 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.50ct Round
€8,935 EUR